Maybe agent-based modeling could be used to gain some interesting insights in the way you're describing?
https://en.wikipedia.org/wiki/Agent-based_model
"ABMs do not assume the economy can achieve equilibrium and "representative agents" are replaced by agents with diverse, dynamic, and interdependent behavior including herding. ABMs take a "bottom-up" approach and can generate extremely complex and volatile simulated economies. ABMs can represent unstable systems with crashes and booms that develop out of non-linear (disproportionate) responses to proportionally small changes."
We do see that to some extent in the United States, since the states do have a fair amount of leeway in making a lot of laws. Granted, nothing like what you're talking about.
I can buy an AK-47 with the capacity to accept detachable magazines in Phoenix, but not in Los Angeles.
In Oregon, a minor can get an abortion without a parent present. In Texas, it can't happen without a parent present.
In California I can walk into a store and buy an ounce of Nothern Lights cannabis, but in Alabama, everyone working in the dispensary would be put in prison on felony charges.
In Nevada I can legally visit a prostitute. In Arizona I cannot.
In California I can ride a motorcycle in-between lanes of traffic. In New York I cannot.